package demo1;

public class Keyboard implements IUSB {
    @Override
    public void openDevice() {
        System.out.println("打开键盘");
    }
    @Override
    public void closeDevice() {
        System.out.println("关闭键盘");
    }
    public void inPut() {
        System.out.println("输入功能");
    }
}
